⇒Semiconductor

1. ⇒  (MHT CET 2023 13th May Morning Shift )

On increasing the reverse bias to a large value in a P-N junction diode, current

A. increase slowly.

B. remains fixed.

C. suddenly increases.

D. decreases slowly.

2. ⇒  (MHT CET 2023 12th May Evening Shift )

In which figure, the junction diode is forward biased?

A.

B.

C.

D.

3. ⇒  (MHT CET 2023 12th May Morning Shift )

When forward bias is applied to a p-n junction, then what happens to the potential barrier $\left(V_B\right)$ and the width $(\mathrm{X})$ of the depletion region?

A. ${\mathrm{V}}_{\mathrm{B}}$ increase, $\mathrm{X}$ decreases

B. ${\mathrm{V}}_{\mathrm{B}}$ decreases, $\mathrm{X}$ increase

C. ${\mathrm{V}}_{\mathrm{B}}$ increase, $\mathrm{X}$ increase

D. ${\mathrm{V}}_{\mathrm{B}}$ decreases, $\mathrm{X}$ decreases

4. ⇒  (MHT CET 2023 11th May Evening Shift )

If $p$-$n$ junction diode is in forward bias then

A. width of depletion layer increases

B. electric conduction is not possible at all

C. barrier voltage increases

D. width of depletion layer decreases

5. ⇒  (MHT CET 2023 10th May Evening Shift )

For the diagram shown, the resistances between points A and B when ideal diode D is forward biased is '$R_1$' and that when reverse biased is '$R_2$'. The ratio $R_1:R_2$ is

A. 2 : 1

B. 1 : 1

C. 1 : 2

D. 1 : 4